CVE-2017-7899 : Exploit Details and Defense Strategies
Learn about CVE-2017-7899, a vulnerability in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400 PLCs allowing user credentials exposure via HTTP GET method. Find mitigation steps and preventive measures.
A vulnerability has been found in various models of Rockwell Automation Allen-Bradley MicroLogix 1100 and MicroLogix 1400 programmable logic controllers, leading to information exposure through user credentials.
Understanding CVE-2017-7899
This CVE involves an Information Exposure issue in Rockwell Automation Allen-Bradley MicroLogix 1100 and MicroLogix 1400 PLCs, potentially exposing user credentials.
What is CVE-2017-7899?
The vulnerability allows user credentials to be transmitted to the web server via HTTP GET, risking unauthorized access to sensitive information.
The Impact of CVE-2017-7899
The exposure of user credentials poses a significant security risk, potentially allowing unauthorized individuals to access sensitive data.
Technical Details of CVE-2017-7899
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability affects specific versions of Rockwell Automation Allen-Bradley MicroLogix 1100 and MicroLogix 1400 PLCs, allowing user credentials to be logged due to HTTP GET method usage.
Affected Systems and Versions
- Rockwell Automation Allen-Bradley MicroLogix 1100 Series A and B, Version 16.00 and prior
- Rockwell Automation Allen-Bradley MicroLogix 1400 Series A and B, Version 16.00 and prior
Exploitation Mechanism
User credentials are sent to the web server using the HTTP GET method, potentially leading to unauthorized retrieval and exposure.
Mitigation and Prevention
Protecting systems from CVE-2017-7899 is crucial to prevent unauthorized access and data breaches.
Immediate Steps to Take
- Implement network segmentation to isolate PLCs from external access
- Monitor network traffic for any suspicious activities
- Change default credentials and use strong, unique passwords
Long-Term Security Practices
- Regularly update firmware and software patches for PLCs
- Conduct security assessments and penetration testing to identify vulnerabilities
Patching and Updates
- Apply patches and updates provided by Rockwell Automation to address the vulnerability